求每个终点的平均票价的SQL语句是：A．SELECT终点，avg (票价) FROM ticket GROUP BY 票价B．SELECT终点，avg (票价) FROM ticket ORDER BY 票价C．SELECT终点，avg (票价) FROM ticket ORDER BY 终点D．SELECT终点，avg (票价) FROM ticket GROUP BY 终点
求每个终点的平均票价的SQL语句是：
A．SELECT终点，avg (票价) FROM ticket GROUP BY 票价
B．SELECT终点，avg (票价) FROM ticket ORDER BY 票价
C．SELECT终点，avg (票价) FROM ticket ORDER BY 终点
D．SELECT终点，avg (票价) FROM ticket GROUP BY 终点
相关考题：
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